Aquarium Overflow comb

STL is 295mm long, 40mm high and 5mm thick. The design is fully parametric and can be customised via Fusion 360 in the link below:
https://a360.co/3QXrQx7

Print with PETG and 100% infill so it doesn't soak water and last a long time.

I glue it straight to glass with super glue. For a stronger hold you might have to print something else to attach it to the glass.